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1.Production:
--6640 insulation composite is made of two layers of Du Pont Nomex paper with one layer of polyester film.
--According to different thicknesses of Nomex paper, 6640 NMN can be divided into two kinds. The thicker one(0.04mm) with yellow line, the other one(0.05mm) with orange line.
--The thicker Nomex paper you choose, the higher electrical strength is.
6640 insulation composite
2.Features and Aplication:
--Insulation class: F/H class (155/180 °C)
--Nomex paper/Polyester film/Nomex paper has Excellent heat resistance, dielectric property and mechanical strength.
--Good cutting and overload resistance, high stiffness. Good compatibility with insulation varnish.
--As slot, interturn and liner insulation for F-grade motors and electric appliances.
6640 insulation composite
3.Availability:
--Form: roll, sheet, strip
--Colur: White sheet with orange or yellow line.
6640 insulation composite
4.Layers structure:
--Three layers: polyester film is bonded with Nomex paper.
--Middle Layer: Polyester film(PET) for Electrical Purposes.
--Outer Layer: Nomex paper.
Performance requirements of indicators as follows:
Properties | Units | Values | ||||||||
Nominal thickness | mm | 0.15 | 0.18 | 0.20 | 0.23 | 0.25 | 0.3 | 0.35 | ||
Thickness tolerance | mm | ±0.02 | ±0.03 | ±0.04 | ||||||
Grammage and tolerance | g/m2 | 180±25 | 210±30 | 240±30 | 260±35 | 300±40 | 350±50 | 430±50 | ||
Tensile strength | MD | No bending | N/50mm | ≥150 | ≥160 | ≥180 | ≥200 | ≥220 | ≥270 | ≥320 |
After bending | ≥80 | ≥110 | ≥130 | ≥150 | ≥180 | ≥200 | ≥250 | |||
TD | No bending | ≥90 | ≥110 | ≥130 | ≥150 | ≥180 | ≥200 | ≥250 | ||
After bending | ≥70 | ≥90 | ≥110 | ≥130 | ≥150 | ≥170 | ≥200 | |||
Elongation | MD | % | ≥10 | ≥12 | ||||||
TD | ≥15 | ≥18 | ||||||||
Breakdown voltage | No bending | kV | ≥7 | ≥10 | ≥11 | ≥12 | ≥13 | ≥15 | ≥20 | |
After bending | ≥6 | ≥8 | ≥9 | ≥10 | ≥12 | ≥13 | ≥16 | |||
Bonding property at room temp. | / | No delamination | ||||||||
Bonding property at 180℃±2℃ 10min | / | No delamination, no bubble, no adhesive flow | ||||||||
Temp. index of heat-resistance in a long term (TI) | / | ≥155 | ||||||||
The quality warranty period | Twelve months | |||||||||
Why choose us?
Others Ours

We have professional production equipment,clean production workshop.

Our finished products are neatly arranged in the specified area.

Our finished product is Wrapped by proctective film and standard import & export cartons or.iron pallets.
6640 insulation composite

Henan Yaan Electrical Insulation Material Plant Co., Ltd. was established in 1986. It is located in the Weidu Industrial Agglomeration in Xuchang City, Henan Province. It is a high-tech enterprise in Henan Province. It is a manufacturing enterprise specializing in the production of electrical insulation materials.The main products are Electrical Insulation Flexible Laminates, impregnated fiber insulation material , Epoxy Prepreg & Diamond Dotted Electrical Insulation Material,electrical insulation banding tape,NMN flexible laminate , supporting more than 100 varieties of transformer insulating materials.
In order to better serve customers, the company has established seven comprehensive guarantee systems, such as mature supply system, key parameter production process system, warehousing system, packaging system, QC system, pre-shipment inspection system and after-sales service system.
The company started to set up the International Trade Department in 2008. The products have been directly exported to more than 30 countries and regions around the world. In March 2018, Henan Yaan Electric Power Technology Co., Ltd was established in Zhengzhou High-tech Development Zone, the capital city of Henan Province.NMN flexible laminate
Henan Yaan Electric Power Technology Co., Ltd. is an import and export company mainly engaged in international trade. Based on the original international trade business, it has expanded into a one-stop procurement platform for foreign customers' electrical products. The company mainly focuses on the main products of electrical insulation materials. At the same time supporting the sale of insulation related products and electromechanical equipment, such as wire, cable, enameled wire, silicon steel sheet, generator, motor, transformer, and power tools.

Alibaba reviews

1.Q: Are you trading company or manufacturer ?
A: We are a manufacturer, We have more than 35 years experience in producing electrical insulation material.
2.Q: Where is your factory located? How can I visit there?
A: Our factory is located in Xuchang,Henan provience.
3.Q: Which certification do you have?
A: The plant has passed the certificate of ISO 9001 quality system certification;
The products have passed ROHS test.
4.Q: Can i get a samples for free?
A: Of course we can sent you a sample of 6640 insulation composite for free, customers just need to pay a litter shipping change.
5.Q: How long is the delivery time?
A: Generally it is 5-15 days if the goods are in stock, or it is 15-30 days.
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